An anemometer is a tool used to measure wind speed. It has three or four cups attached to horizontal arms and when the wind blows, the cups rotate around. The stronger the wind blows, the faster the ...

If you've ever wanted to be like Rob Haswell -- today's Mad Science moment can help you do just that. Dr. Koco shares how kids can create their own anemometer at home to measure wind power.

This segment originally appeared in today's edition of the Morning Brief newsletter. Sign up here to get weekday updates from The Weather Channel and our meteorologists. An anemometer is a tool used ...